RazorDocument - [0..31)::31 - [<foo><?xml Hello World ?></foo>]
    MarkupBlock - [0..31)::31
        MarkupTagBlock - [0..5)::5 - [<foo>]
            MarkupTextLiteral - [0..5)::5 - [<foo>] - Gen<Markup> - SpanEditHandler;Accepts:Any
                OpenAngle;[<];
                Text;[foo];
                CloseAngle;[>];
        MarkupTextLiteral - [5..25)::20 - [<?xml Hello World ?>] - Gen<Markup> - SpanEditHandler;Accepts:Any
            OpenAngle;[<];
            QuestionMark;[?];
            Text;[xml];
            Whitespace;[ ];
            Text;[Hello];
            Whitespace;[ ];
            Text;[World];
            Whitespace;[ ];
            QuestionMark;[?];
            CloseAngle;[>];
        MarkupTagBlock - [25..31)::6 - [</foo>]
            MarkupTextLiteral - [25..31)::6 - [</foo>] - Gen<Markup> - SpanEditHandler;Accepts:Any
                OpenAngle;[<];
                ForwardSlash;[/];
                Text;[foo];
                CloseAngle;[>];
